Radiochassis



Sept. 4, 1928.

P. E. EDELMAN RADIOCHASS IS Original-Filed June 5. 1922 2 Sheets-Sheet 1 Sept. 4, 1928.

P. E. EDELMAN RADIOCHASS IS 2 Sheets-Sheet 2 6 IQVENTOR.

Patentedsept. 4, 1928.,'

' UNITED STATES PHILIP E. EDELMAN, or CHICAGO, ILLINOIS.

v RADIO CHASSIS.

Original application filed June 5, 1922, Serial no. 566,132. Divided and this application fil ed November 2a, 1927. Serial No. 236,389.

My present invention is divided from my original application Serial No. 566,132 filed June 5, 1922, and relates to a mounting chassis or support-tray for assembly of radio apparatus whereby the assembly is facilitated with marked improvement in simplicity of assembly and mechanical strength thereof permitting the various elements of a radio receiver to 'be supported on common base. I attain these-objects by providing a chassis or supporting tray and illustrate a suitable embodiment thereof by way of eXample'in the accompanying drawings of which Fi.gure 1 is a perspective view, and Figure. 2 a rear elevation View ofthe chassis of Figure 1 assembled with apparatus parts in a cabinet. Various changes from the specific showing may be made within the scope of the appended claims. a

Heretofore it has been the practicein this art to employ radio apparatus parts scattered in separate units and wired therebetween. Ihave conceived that marked im provement can be attained by a grouped mounting for the various apparatus units and power supply thereforand provide a.

common chassis arranged to permit short wiring between the parts with all of the vacuum tubes of the radio set provided with a common mounting strip or shelf.

The base 1 hasre-inforeing strips 2 and 5 along two sides thereof as shown, also supporting feet 3 and 24. Flanges and 6 extend upwards from base 1 and. hold strip 7 to form a' shelf. Strip 7 is provided with mounting holes 4 shown by way of en ample to accommodate four standard radio vacuum tube base sockets in line along said shelf 7, permitting the circuit parts connect.- ing with said sockets to be mounted directly below strip 7 between flanges 15 and 6. Base 1 also supports a tray portion 17 for holding a power supply device to actuate said vacuum tubes mounted on shelf 7. The rear end of tray 17 is 20, the front end thereof 16, and the side thereof is 21. Holes 22in base 1 are made to accommodate binding post ter- .minals;. The various a paratus parts are not shown as the use is obviousto anyone skilled in this' art and this invention relates to the chassis or supporting base per se. A hole 14 p in base 1 and block 24'wi ll accommodate a rep'roducer unit, the connecting wires of which can be accommodated byholes 19.

Two flanges 18 and 9 support a shelf strip I prise a radio receiver can be mounted on said chassis retaining the advantages set forth permittlng successive vacuum tubes and circuits thereof to be wired in line on shelf 7 wlth a minimum of wiring to the other parts supported by base 1. By ,.such construction the radio set supported by such a chassis support 1 is able to withstand damage or breakage otherwise likely to occur in transportation, also long wire connections between the parts are avoided. While various modiappended claims it is very advantageous to retain the idea of a common mounting strip forholding the vacuum tubes and parts connected thereto in line, the linear relation along strip 7 permitting the shortest possible wiring between said parts.

- exemplification of the use of the chassis of Flgure 1 is shown in Figure 2. Base 1 is held in cabinet 25. The various apparatus parts 26, 27' 28, 29, 30, 31, 32, 3a, 34., 35, 3e, 37,- 38, 39, respectively, are supported via chassis base 1 as indicated. Cover 40 of cabinet 25 permits accessibility to said supported fications ay be made within the scope of the apparatus part for manipulation thereof when cover 40 is raised from cabinet 25.

Vacuum tubes 31, 32, 33, 3 1 are linearly dis-- posed on shelf 7 while apparatus parts 27, 28,

29, and 30 are supported directly below shelf 7 and held in relation thereto by shelf 7 so that a minimum length of connecting wire is j required.

Base 1 can be easily removed from cabinet 25 for inspection without disconnecting the 'said apparatus parts 27 28, etc. 1

Base 1 with its assembled parts can be prepared at a radio factory while cabinet 25-is separately shipped from a. furniture factory,

so that assembly ofthe-chassis in the cabinet can be quickly made or interchanged in different cabinets. The apparatus parts 27 28 etc. are seeurelyheld by chassis base 1 and protected from damage in shipping. The

novel arrangement set forth permits wiring and repairs to be quickly made.

I claim: I. In a radio apparatus chassis, a support- 5 ing base, a mounting plate for apparatus parts supported on said base, and a vacuum tube supporting strip extending linearly along said base and supported thereby.

2. In a radio apparatus chassis, a base, feet strips reinforcing said base, a vacuum tube socket support strip supported on said base, and a cooperating apparatus mounting strip held on said base near to said linearly disposed strip.

3. In a radio apparatus chassis, a base for supporting apparatus parts of a radio set and a power supply therefor, reinforcing strips disposed at the ends of said base, a tray rtion com rised with said base atone end thereof for olding a power supply device, an apparatus mounting plate extending from another end of said base and supported thereby, and a vacuum tube shelf strip linearly disposed adjacent to said mounting plate and tray portion and supported on said base,

linearly disposed and,

4. In a radio ap aratus chassis, a base, flanges sup orted t ereby, a vacuum tube support she f supported by said flanges, and an apparatus mounting plate sup orted by flanges fastened to said base and a jacent to said support shelf.

5. In a radio apparatus chassis, a base, flanges extending vertically therefrom, mounting strips supported on said flanges, and cooperative mounting holes formed in said strips whereby both top and bottom surfaces thereof may be used as supporting surfaces.

6. In a radio apparatus chassis,.a base, vertical flanges carried by said base, mounting strips supported on said flanges, and mounting holes formed in said strips, the relative position of said strips and flanges being proportioned to form an open channel portion for wires connected between apparatus parts mounted on said mounting strips.

In witness whereof I have hereunto set my hand this 13th day of August, 1927'.

PHILIP 'EDELMAN. 

